crecelitjs



(No Model.)

L. J. OREGELIUS.

RAILROAD TRACK JACK.

No. 251,415. Patented Dec. 27,1881.

N. PETERS Pnomlnm m nan Washington. 0. c4

UNITED STATES PATENT Orrrce.

LOUIS J. GREOELIUS, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO ANDREW WARREN, OF SAME PLACE.

RAI LROAD-TRACK JACK.-

SPECIFICATION forming part of Letters Patent No. 251,415, dated December 27, 1881 Application filed December 1, 1881. (No model.)

To all whom it may concern: at each side, leaving a recess betwcez-l them.

Be it known that I, LOUIS J. GREOELIUS, a These recesses fit the sides of the frame, and

citizen of the United States, residing at St. form ways for the nut as it is moved up and Louis, in the county of St. Louis and State of down. By the use of the traveling nutO, hav- 5 Missouri, have invented certain new and useing flanges or bearings resting against the two ful Improvements in Railroad-Track Jacks, of sides of the frame A, the transverse pressure which the following is a specification. of the lifting-weight is jointly borne by the My invention relates to the class of jacks two sides of the upright frame and by the rethat are specially adapted to lit'tingtrack-rails; volving screw, thereby avoiding the bending to and it consists of an upright frame, a screw or breaking of the screw by reason of excessive journaled at both ends in the frame, and a transverse pressurewhen the load is being 6c traveling nut carrsing a lifting lug or lever, lifted. as will be hereinafter more fully explained; A lifting lug or lever, D, is formed on the Referring to the drawings making a part of nut G, as plainly shown in Fig. l and also in 15 this specification, and in which like letters of plan in Fig. 2. By turning the lever F the reference indicate corresponding parts, Figure screw is revolved in its bearings in the top of 1 is a perspective view of the jack. Fig. 2 is the frame and in the base E, but is not lifted; a plan view of the traveling nut and liftingbut the rotation of the screw lifts the not 0, lug, and Fig.3 is a section on lineXX, Fig. 1. which rides up or down on the frame as'the 20 A represents the frame of the jack, which lever is turned in one direction or the other.

is in the form of an inverted U, and is made The operation of the jack will be readily of one continuous bar of metal. The top is understood. The jack is placed on the roadenlarged and provided with an aperture to rebed by the side of the track, with the lug I) ceive the upper end of the screw. The lower underneath the rail to be lifted, and the turn- 2 portion is provided with outwardly-projecting ing of the lever or wheel accomplishes the lugs, one in each leg of the frame, and is so work. cured to the base E by means of bolts or riv Having thus fully described my improveets which are passed through the lugs and the ments, what I claim isbase. 1. A railroad-track jack having a suitable 0 The screw B is threaded, except at the top frame, a screw journaled in saidframe at the and bottom, and isprovided at the lower end top and bottom, and a traveling nut carrying with a short tenon or pintle, a, which rests in a lifting ing or lever, substantially as set forth.

a correspond-ing hole or recess in the bed-plate 2. A railroad-track jack consisting of an in- E. The screw B is journaled in the frame at vertcd-U shaped frame, a base or bed plate, a

5 the top, and may be provided with a shoulder screw journaled in said frame or base at the resting upon the top of the frame; but I pretop and bottom, a traveling nut carrying a lit'tfer to have the weight or resistance borne by ing ing or lever, and suitable bar or wheel, the lower end of the screw, which rests in the substantially as set forth. bedplate. The extreme upper end ot'the screw 3. In a railroad-track jack, a traveling nut 40 B is also provided with a tenon to receive the carrying lifting-lever.having ways in which it opening-lever F, which may be screw-threaded rides on both sides ol'the frame, and internally 0 to receive a nut, b, which holds the lever in screw-threaded to adapt it to be raised and place. I lowered by a' rotating screw, substantially as I sometimes substitute a hand-wheel for the described. 4 5 lever F, but do not desire to restrict myself to '1 the use of either. I LOUIS OREbELIUb' The traveling nut G is tubular in form, and WVitnessesi is tapped to correspond with the thread of the ANDREW WARREN, screw, and is formed with two vertical flanges J OSEPH DICKSON. 

